GOST 24256-80
GOST 24256−80 replaceable cutting Inserts carbide faceted diamond shaped with an angle of 55°, with a hole and a chip breaking C-grooves on one side. The design and dimensions (with Amendments No. 1, 2, 3)
GOST 24256−80
Group 56
INTERSTATE STANDARD
CUTTING INSERTS, REPLACEABLE CARBIDE FACETED
RHOMBIC SHAPE WITH AN ANGLE OF 55°, WITH HOLE
AND A CHIP BREAKING C-GROOVES ON ONE SIDE
The design and dimensions
Rhombic throw-away (indexable) carbide cutting inserts with 55° included
angle, with cylindrical holes and chip-breaking flutes on one face only.
Design and dimensions
ISS 25.100
77.160
OKP 19 6000
Date of introduction 1982−01−01
INFORMATION DATA
1. DEVELOPED AND INTRODUCED by the Ministry of nonferrous metallurgy of the USSR
2. APPROVED AND put INTO EFFECT by Decision of the USSR State Committee for standards from
3. In this standard introduced by the international standard ISO 3364−85 «Plate replaceable tungsten carbide with corner radii with a cylindrical hole. Dimensions» in terms of inserts DNMM
4. INTRODUCED FOR THE FIRST TIME
5. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS
| The designation of the reference document referenced |
Item number |
| GOST 19042−80 |
5 |
| GOST 19086−80 |
6 |
6. The expiration time limit is removed by the Resolution of Gosstandart of the USSR from
7. EDITION with Amendments No. 1, 2, 3, approved in October 1984, April 1987, December 1990 (IUS 2−85, 8−87, 4−91)
The requirements of this standard are mandatory.
(Changed edition, Rev. N 3).
1. (Deleted, Rev. N 2).
2. The design and dimensions of plates shall be as specified in the drawing and in the table.
________________
* Size for reference.
mm
| The marking plates of class of tolerance M |
||||||||
| digital | alphanumeric |
Applica- the need* |
||||||
| 13124−150408 |
DNMM-150408 | 15,5 | 12,700 | 5,16 | 4,76 | 0,8 | 6,478 | |
| 13124−150412 |
DNMM-150412 | 1,2 | 6,015 | |||||
| 13124−150608 |
DNMM-150608 | 6.35 mm | 0,8 | 6,478 | ||||
| 13124−150612 |
DNMM-150612 | 1,2 | 6,015 | |||||
| 13124−150616 |
DNMM-150616 | 1,6 | 5,552 | |||||
| 13124−190608 |
DNMM-190608 | 19,3 | 15,875 | 6.35 mm | 0,8 | 8,327 | ||
| 13124−190612 |
DNMM-190612 | 1,2 | 7,835 | |||||
| 13124−190616 |
DNMM-190616 | 1,6 | 7,402 | |||||
________________
* See Annex 4.
Example of designation when ordering plates from a firm alloy T15K6 brand, cutting edge length =15.5 mm, thickness
=4.76 mm, radius
=0,8 mm:
19 6613
0439 150408
(Changed edition, Rev. N 2).
3. The shape and dimensions of a chip breaking C-grooves are provided in Annex 1.
4. Approximate weight plates are given in Appendix 2.
5. The notation of plates according to GOST 19042.
6. The notation of plates according to GOST 19042.*
________________
* Repeat. Consistent with the original. — Note the manufacturer’s database.
7. Applied alloys is given in Appendix 3.
(Added, Rev. N 3).
ANNEX 1
Recommended
The shape and size of chip grooves on the front surfaces of the plates
________________
* Dimensions for reference.
ANNEX 2 (informative)
ANNEX 2
Reference
| Digital signage plates | Approximate weight of plates, g | |||
| carbide grades | from the solid alloy grade TH20 | |||
| Т5К10 |
Т14К8 | T15K6 | ||
| 13124−150408 |
8,00 | 7,33 | 7,20 | 3,64 |
| 13124−150412 |
Of 7.93 | 7,19 | Of 7.07 | 3,58 |
| 13124−150608 |
10,80 | 9,80 | 9,60 | 4,86 |
| 13124−150612 |
10,60 | 9,60 | 9,41 | 4,76 |
| 13124−150616 |
10,60 | 9,30 | 9,16 | 4,61 |
| 13124−190608 |
17,00 | 15,40 | 15,10 | - |
| 13124−190612 |
16,80 | 15,20 | 14,90 | - |
| 13124−190616 |
16,50 | 14,90 | 14,70 | - |
APPENDIX 2. (Changed edition, Rev. N 3).
APPENDIX 3 (recommended). Applied grades of plates
APPENDIX 3
Recommended
| Digital signage plates |
The main application | Application by special order |
| 13124−150408 |
N 7 | N 5, N 6, N 8 |
| 13124−150412 |
- | N 5, N 6, N 7, N 8 |
| 13124−150608 |
N 5, N 7 | N 6, N 8 |
| 13124−150612 |
N 7 | N 5, N 6, N 8 |
| 13124−150616 |
- | N 5, N 6, N 7, N 8 |
| 13124−190608 |
N 5, N 6, N 7 | |
| 13124−190612 |
||
| 13124−190616 |
N 5 — Т5К10; N 6 — Т14К8; N 7 — T15K6; N 8 — ТН20.
ANNEX 4 (reference). The applicability of the plates
ANNEX 4
Reference
| Marking | Plate with a chip breaking C-grooves on two sides | |||||
the radius | ||||||
| 0,4 | 0,8 | 1,2 | 1,6 | 2,4 | ||
| 12,7 | DNMG 1504 |
++ | + + | ++ | ++ | +++ |
| DNMG 1506 |
+ | + | + | + | +++ | |
| 15,875 | DNMG 1906 |
+++ | ++ | ++ | + + | ++ |
Note. + — plates of the basic application, standardized.
++ — plates have limited use, not standardized.
+++ — plates are not recommended for use.
APPS 3, 4. (Added, Rev. N 3).
